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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6833) [WINDOWS] Java Milisecond precision on Windows
Date Wed, 19 Sep 2012 15:39:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13458759#comment-13458759
] 

Lars Hofhansl commented on HBASE-6833:
--------------------------------------

Probably. I do not know how long nano time would be valid for comparison. (Presumably the
problem is eventual wrap around, but I am just assuming).

I'll ask some of the JVM guys we recently hired.
                
> [WINDOWS] Java Milisecond precision on Windows
> ----------------------------------------------
>
>                 Key: HBASE-6833
>                 URL: https://issues.apache.org/jira/browse/HBASE-6833
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: 0.96.0, 0.94.3
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>              Labels: windows
>
> HBase relies on the system clock obtained by System.currentTimeMilis() to supply the
version, if it is not provided by the client in Put's and Delete's. At HBASE-6832 and HBASE-6826,
we discovered that on some platforms, the milis clock might not be updated every milisecond,
which might cause unexpected behavior. We also did some preliminary analysis there.
> In this issue, we can further discuss and inspect whether it is a problem for main target
platforms and if so what can be done.

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